Interior design websitetrabajos

I'm looking for a talented interior designer to revamp our law firm's reception area and conference rooms as well as interior of the office. Your challenge is to transform these spaces into a modern and minimalist haven that speaks both of professionalism and comfort. Specific requirements: - Focused areas: Reception, Conference rooms. - Design theme: Modern and minimalist. - Color scheme: Neutral tones (beige, gray, white). Ideal Skills and Experience: - Proven experience in office interior design. - Portfolio showcasing a modern and minimalist design aesthetic. - Excellent knowledge of color theory and practical application.

...giving potential buyers a visual experience like no other. 1- The first sequence: is an exterior flyover and walk around. 2- The second sequence is: Interior walkthrough. The project consists of 10 town houses, 3 floors each. Situated on 5500+/- sqm. We already have a detailed Revit Model that includes buildings, site, interior furniture and other details. I want the animation to be comprehensive, encompassing aspects such as interior renderings, landscape, surrounding environment and other entourage. *Include source file Skills and experience: - Proven background in creating 3D real estate animation. - Mastery in illustrating interior design, landscape, and building exteriors - Ability to complete the project within a set timeline - Attention to...

I require an accomplished and detail-oriented freelancer with expertise in Revit to produce the construction documentation for specific rooms in a building. The project involves creating advanced Architectural drawings and an Interior Design Construction Drawing Set. Skills and Experience: - Expertise in Revit Architecture and representation. - Demonstrated ability in creating high-quality construction documents. - Experience in architectural interior design is a must. The freelancer is expected to have a keen eye for detail to meet the level of intricacy expected in construction documentation. It is pivotal that the drawings are exhaustive and precise for implementation. The scope of the work should strictly adhere to the specific rooms of the building prov...

...architectural design of a building that requires representation, both in its interior and its exterior, in an interactive and visually appealing 3D sketch. Client will provide building shell design showing exterior and interior, and building size specifications. Designer will need to see instructions to include virtual hospital appeal for this static sketch design. Seeking same design of exterior and exterior from 3 different angles. MP4 or animated GIF is acceptable, also. Please see image examples enclosed hereto. Requirements: - I expect to receive the 3D sketches in the JPEG and PDF formats. - Proven experience in creating engaging 3D sketches from an already provided design. - Priority will be given to both the interior and ...

I'm searching for an experienced interior designer with a flair for traditional styling to help me transform the exterior of my residential property. The project will focus primarily on: - Brainstorming and executing a traditionally-influenced design conception for the exterior of my house. - Providing color, material, and finish recommendations that align with a traditional aesthetic. - Working with me to ensure the final design is both beautiful and functional, meeting my specific needs. The ideal candidate has: - Experience with residential exterior design. - A strong portfolio showcasing their skills in traditional-style design. - Robust knowledge of color theory, mood boarding, and other design principles. - Excellent communication sk...

I am seeking an experienced interior designer to renovate the 5th floor lobby of my hotel with a modern aesthetic. The lobby is quite large and needs a confident designer who can work with open spaces. Key elements to include in the design are: - Lounge area : Create a sophisticated and comfortable lounge space that complements the modern style with functionality and aesthetic appeal. - Art installations : Consider incorporating art installations that fit the lobby's modern design while creating an engaging environment for guests. The ideal candidate will have experience in modern interior design, particularly for large spaces like hotel lobbies. It will be beneficial if you have dealt with incorporating art installations into your past designs....

I require a talented and experienced interior designer to transform my living room, kitchen, and bedroom into modern-styled spaces. The preferred candidate should have a strong portfolio showcasing their ability to create beautiful, modern residential designs. Specific tasks includes: - Ensuring a cohesive modern design throughout all rooms - Developing redesign plans and renderings - Selecting appropriate furniture, fixtures, and decor The ideal freelancer will have five or more years of residential interior design experience, with particular expertise in modern style. A degree in interior design or a related field is preferred, but not required. Strong communication skills are a must. Attention to detail and an ability to work within budget c...

I'm searching for a highly skilled interior designer, experienced in modern aesthetics, to provide a complete makeover for my large-sized (>200 sqm) villa here in Dubai. Key area highlights: - The entire villa, encompassing living rooms, bedrooms, and the kitchen, is included in the scope of work. - The design concept should be clean, minimalistic, and modern. - A successful candidate should have experience in space planning and creating functional, comfortable and aesthetically pleasing spaces. Ideal Skills: - Extensive portfolio in modern interior design - Understands Dubai’s interior design market and trends - Past experience in designing villas of similar or larger size. I look forward to seeing your previous works and ideas...

I'm looking for someone who has experience and expertise in designing a nursery that is in ...The chosen freelancer should work with neutral tones to create a calm and soothing environment for the baby. The following features are critical: - Reading nook: A comfortable corner where we can read to the baby. - Changing station: This should be practical and coordinated with the overall design. - Storage space: Although the design should emphasize minimalism typical of Scandinavian style, it's vital to have ample and smart storage solutions for baby essentials. Skills and experience in interior design, particularly with a focus on children's rooms or nursery setups, are highly valued. A keen understanding of the Scandinavian style is crucial. Please...

Looking for a 3D designer proficient in SketchUp for designing my residential space. The project involves creating detailed models for the living room, kitchen, and bedroom. Key Tasks Include: - Creating realistic 3D models of the li...involves creating detailed models for the living room, kitchen, and bedroom. Key Tasks Include: - Creating realistic 3D models of the living room, kitchen, and bedroom - Working closely with me to understand and incorporate my specific requirements into the design Ideal candidate should have: - Expertise in SketchUp; experience in residential interior design is a plus - Strong artistic sense with a keen eye for detail - Ability to interpret and translate customer desires into 3D designs. Looking forward to bringing my home interio...

I need a skilled graphic designer to freshen up the caravan park map specifically in regards to the cabins descriptions. Key responsibilities will include: - Adding more accurate and appealing details about cabin amenities to the map - Incorporating the number of rooms each type of cabin has - Carefully describing and illustrating the interior furnishings within each cabin The candidate should have experience in cartography and graphic design, with an eye for detail and accuracy. If you have carried out similar projects in the past, you'll be at the top of our list. Please note, that the park's name will remain the same.

I'm after a highly skilled individual with impeccable proficiency in Blender and Cycles for an advanced interior space 3D visualization project. You'll be responsible for crafting a detailed, complex digital rendition of an interior, using natural textures like stone, water, and leaves. Key responsibilities: * Crafting highly complex and intricate details within the virtual space. * Implementing realistic natural textures to enhance the overall aesthetic. Your skill set should include: * Extensive experience creating high-detail 3D visualizations, particularly interior spaces. * In-depth knowledge and practical experience with Blender and Cycles. * Strong understanding and creative use of natural textures. * Proven ability to create realistic, visually enga...

I am seeking a seasoned graphic designer to create a minimalist logo for my interior design company. This logo will ideally embody the strength and sophistication of architectural elements. If using any colours I prefer muted natural tones. Key Requirements: * Experience in creating minimalist logos * Proficient in color selection and meaning * Strong understanding of architectural elements incorporation in designs Your expertise will help set my brand apart in the interior design industry. Looking forward for your innovative ideas!

I am seeking a professional with architectural and interior designing experience to help generate comprehensive plans for a traditional-style, two-story house with a full basement. The house will be larger than 2,000 square feet. The ideal candidate should be proficient in designing HVAC, plumbing, and electrical systems. Main House Specifics: - More than 2,000 sq ft - Two stories - Traditional Style Basement Specifics: - Bedroom(s) - Family room - Bathroom - Kitchenette Ideal skills: - Strong experience in architecture and interior design - Previous work with traditional home styles - Demonstrated experience in HVAC, plumbing, and electrical system planning - Good communication and comprehension skills Does NOT need an engineer stamp. Please share any rele...

I'm seeking a 3D artist to create a modern design for my house. The design should include the living room, kitchen, bedrooms, and bathroom. My priority is to have spacious layouts, high-tech materials, appliances, and an abundance of natural light. Ideal Skills and Experience: - Proficient in 3D design software - Experience in home interior design - Understanding of modern home aesthetics - An excellent understanding of space utilization - Knowledge in high-tech home materials and appliances - Ability to incorporate natural light into designs You should provide a portfolio showcasing past projects with a similar styling and requirement. Looking forward to seeing your creativity shine through on this project. I inherited a small but dated property ...

I'm seeking an innovative interior designer to work on my 135 sq meter flat, comprising of two bedrooms each with an ensuite bathroom. The ideal freelancer would resonate with a beachfront, tropical theme design style. Key aspects include: - Design expertise: A strong background in minimalist, modern and traditional design would be beneficial. Prior experience with tropical beachfront style is preferred. - Creative prowess: Ability to develop a unique and vibrant tropical aesthetic. - Work without color preference: As I've skipped color preference, you have an open palette for creative interpretations of a tropical theme. It's an excellent opportunity to showcase your creative ingenuity in creating a compelling tropical atmosphere!

To work with Owner of office buildings for interior design finishes for small offices. Selections include carpeting, wallcovering, paint, cabinetry etc. Freelancer must have experience with United States materials and finishes. Deliverable shall include finish schedule.

As an Airbnb property owner, I'm looking to transform my studio apartment interior design into a minimalistic haven for guests. Most important goal is to design the space with furniture & artwork so it is photogenic and jumps off the page when guests are searching for properties. Bonus if you can connect the design to Silicon Valley in some way as it is located in that area. Here is a link to our existing property on AirBnB. Please check the photos: The project revolves around delivering an attention grabbing, comforting, sleek and clean appeal, focusing on: 1. Furniture & Artwork Selection - Minimalistic yet comfortable & durable furnitures are needed that not only

I am on the hunt for an experienced Revit professional to bring to life my building and interior visions. Besides proficiency in Revit, knowledge of CAD design is preferred but not a necessary. Engagement specifics are as follows: - Master in creating architectural plans and 3D Models / representations for buildings, furniture, and interiors. - Able to work to specification and deadlines In sum, I envision this task to be a chance to unleash creativity in doing what you love- designing. Hoping to engage with passionate Revit experts to make this design journey mutually enjoyable and fulfilling. Role may suit a graduate with experience who wants to develop their skills.

I am looking for an expert interior designer with a strong background in minimalist styles to comprehensively redesign my living room, kitchen, and bedrooms. Ideal Skills & Experience: - Proven experience in interior designing specifically in residential spaces. - Expert knowledge and experience in implementing minimalist design principles. - Ability to bring a space to life and make it functional without sacrificing aesthetics. Responsibilities: - Redesigning the layout and overall aesthetic of the living room, kitchen, and bedroom in line with a minimalist style. - Producing detailed layouts and visualisations of proposed designs. - Advising on furniture, decorations, and color schemes that align with the minimalist approach. Please include a portfolio or exa...

I'm looking to update my kitchen, focusing exclusively on a modern style makeover. This project w...some, and an overall reshape of the area. Ideal candidates should have: - Comprehensive experience in modern interior design, more specifically within the kitchen - Knowledge about current design trends - A portfolio showcasing similar projects - Ability to suggest and source suitable furnishing options Your primary task will be: - Designing a new, modern layout for the kitchen - Providing a list of needed furnishings and décor in alignment with the modern design - Supervising the arrangement or installation of the recommended items Please provide relevant experience and portfolios in your bid. It would also be beneficial if you could provide an ...

I'm seeking an expert interior designer with experience in designing industrial style commercial spaces, specifically for offices. The ideal candidate should: - Have a strong track record in designing commercial spaces, with a focus on office interiors. - Demonstrate an understanding and passion for industrial design aesthetics. - Be able to provide suggestions for materials, furniture and décor elements suited for an industrial-themed office. - Can provide examples of past work showcasing their creativity, sense of style and overall design execution. Your past projects will be a key consideration, so please include them in your application. I look forward to creating an office space that is functional while showcasing industrial charm.

I require an expert in residential interior design. The task at hand involves revamping my living area, bedrooms, and kitchen and dining areas. Needs to be Noida based or willing to visit Noida site frequently. Ideal candidates should have: - Proficiency in modern interior design - Experience in redesigning residential spaces, especially living areas, bedrooms, and kitchen and dining areas - Strong creative and communicative skills to understand and execute my vision - A savvy design sensibility keeping in mind the current trends but also maintaining a timeless approach. Looking forward to making my residence a true reflection of modern beauty encompassing comfort.

...qualified individual that can visit my residential property, draw up existing plans and specifically indicate the materials used within the construction. Emphasis is on the following: • Interior floor plans, designating different areas of the house • Identification of materials used within construction • Provide a detailed and precise 2D representation of the existing plans The ideal person for this project has experience in drafting, blueprint reading, and identification of construction materials. Knowledge of residential buildings, professional ability to measure and draw up rooms, hallways, and other interior details is crucial. Your work will directly support the upcoming renovation project, knowing exact material used and precise measurements w...

I need an interior designer with experience in modern residential aesthetics. The designer will revamp and refresh the look of my living room, kitchen, and bedrooms. Key Responsibilities: - Understand and translate my aesthetic and functional requests into beautiful and modern room designs. - Present initial concepts, including layouts, color palettes, and furniture choices, and refine based on my feedback. Skills and Experience: - Proven expertise in modern residential interior design. - Great at communicating to ensure a consistent vision. - Ability to work within a budget and source cost-effective materials and artifacts.

Coastal interior design for 1 Bedroom apartment and outdoor living.

This project requires a precise and detailed shop drawing for a custom design baby crib. The drawing needs to provide exhaustive measurements, ensuring every detail is taken into account for an accurate representation of the product. The drawings will be intended to be used as a clear and simple reference for carpenters to make the furniture. Ideal Skills and Experience: - Proficiency in producing Furniture Shop Drawings - Attention to detail regarding measurement accuracy - Proficient using CAD software or similar tools - 3D Model Generating Design/Style: Create drawing of a customized crib design inspired by several cribs designs combined into one, showcasing elegance and simplicity of the desired final design while maintaining the function and safety of t...

photo realistic 3D renders for living dinning, kitchen and bathroom

I'm looking for an experienced 3D artist to create a detailed rendering of the interior of a camper, with emphasis on the sleeping area, kitchen, and seating areas. The artistic style could be guided by the CAD plans provided, retaining the original design details while enhancing them for a more realistic look. The ideal candidate should possess: - Strong skills in photorealistic 3D rendering - Expertise in creating detailed furniture and decor - Experience in interpreting and working from CAD files - An understanding of interior design to effectively communicate the usability of the space Please include samples of any similar projects completed, especially those involving vehicle or small space interiors.

I am seeking a skilled commercial interior designer to revamp my retail store. The desired style for the design must be modern and attractive, to reflect the cutting-edge quality of our products. The design intervention is required in all areas of the store, which include: - Reception area - Workstations - Meeting rooms The ideal candidate should have a proven track record in commercial design, specifically retail spaces, and a strong ability in incorporating modern design elements. Demonstrated savvy in optimizing space utility while maintaining aesthetic appeal is essential. Experience in retail store design is preferred, as understanding customer flow and shopping patterns are crucial for success in this project. It&#...

I'm seeking an interior designer with a knack for modern design to revamp my bedroom and walk-in closet. You should apply cool color schemes to emphasize a clean, sleek look. For the closet, I need more hanging space for better organization. Your expertise in maximizing space while maintaining a contemporary aesthetic will be crucial. The goal is to create a soothing, stylish sleeping space and a highly functional, modern closet. Prior experience with similar projects will be beneficial. Let's create spaces that are both practical and trendy.

I am looking for a talented 3D render artist to produce a high-quality modern interior design visualization. The purpose of this project is to achieve a realistic representation of my design, which follows a modern aesthetic. While the main focus will be on rendering the interior, an essential element of this project is: - Lighting Effects: To create a vivid and lifelike ambiance in the rendered space. Ideally, you will have experience in interior design or architecture, and have a keen eye for realistic detail. Previous experience in replicating modern aesthetics and working with lighting effects in 3D renderings will be highly valued. This project will require a solid understanding of modern design and a creative approach to lighting. Pl...

I urgently require an adept 3D Max visualizer to breathe life into my interior design project. To accurately depict my vision, a thorough mastery of realistic lighting and materials is necessary. The ideal freelancer would: - Be proficient in 3D Max - Possess strong skills in creating realistic lighting and materials - Have the ability to work swiftly as this project is on a tight schedule Please provide a portfolio or examples of past work demonstrating these capabilities. Remember, time is of the essence!

I require a skilled and experienced photographer to shoot my residential house, with an emphasis on specific areas including the house's interior spaces, the exterior facade, and an aerial shot via drone. The purpose of these photos is for a real estate listing, so excellent composition skills and experience in real estate photography is crucial. Requirements: - Experience with interior and exterior architectural photography - Drone experience for capturing aerial shots - Understanding of real estate industry standards Deliverables: High-quality, professionally edited photographs in digital format suitable for a real estate listing.

I'm looking for a design-savvy architect to create a comprehensive floorplan for a large restaurant space, over 1000 sq ft. The design should incorporate a dynamic mix of private booths and open table arrangements. It's important to have two distinct entry and exit points, ensuring a smooth traffic flow for both staff and patrons. Ideal skills and experience: - Proven work as an architect or interior designer with restaurant projects - Strong understanding of space utilization and traffic flow in hospitality environments - Knowledge in safety regulations and construction - SketchUp or similar 3D modeling software proficiency. Looking forward for your innovative and practical solutions. Thank you.

Hello Dahlton, I appreciate the insightful discussion we had over Google Meet – it was truly a pleasure. Following our conversation, we have reached an agreement on developing the concept floor plans layout for a two-story house, incorporating your notes and the samples you provided....Meet – it was truly a pleasure. Following our conversation, we have reached an agreement on developing the concept floor plans layout for a two-story house, incorporating your notes and the samples you provided. The cost for this phase will be $600, with an estimated completion time of 7-10 days. Once we successfully conclude this phase, we can transition our discussions to the exterior and interior design, along with rendering considerations. Thank you for your trust in our serv...

...in México City. At the studio we mainly design contemporary architecture including private residences, country houses, condominiums, commercial buildings and interior design. We are passionate about simple and well-stylized design without leaving aside luxury and special attention to detail. The logo must be: -Minimalist and stylized -Contain the full name “10 & 10 STUDIO” -A color option and a grayscale or black and white option are desirable for stationery and printed records. -Reflect personality -It is desirable that it be in 2D The logo must not contain: -Shapes related to silhouettes of houses or buildings -Shapes related to partitions or construction tools -Researched designs or involving more than 2 color tones -A generic/simp...

Your tasks will include, but not limited to: - Measuring the stated spaces. - Drawing accurate and detailed floor designs. Desired Skills & Experience: - Incredible eye for modern interior design - Strong sketching abilities - Excellent skills in measuring dimensions - Experience with residential spaces. Your role will significantly contribute to the overall appeal and functionality of the home.

I am in need of an experienced 3D interior designer to bring a modern and fresh look to my residential property. Even though no specific areas were highlighted that need design, I am open to recommendations for all areas in the house. Ideal Skills: - Expertise in 3D interior design - Extensive knowledge in modern design - Experience with residential properties This project requires someone with a creative eye, who can easily translate my vision into a warm, inviting, and modern home environment. I look forward to seeing your amazing work samples and discussing my project with you more in-depth.

I am on the lookout for an experienced interior designer with a knack for classic aesthetics to thoughtfully design the interiors of my residential space. Your mission, if you choose to accept it, would include bringing my vision into reality within a strict timeframe of a month. Details are: - Space Type: Residential - Design Style: Classic Key Responsibilities: - Develop a thorough understanding of my taste and requirements. - Create layout plans and 3D designs. - Work towards a deadline of one month. Ideal Candidate: - Interns are also welcome to apply - Proven experience in residential interior design projects. - Strong understanding and love for classic design elements. - Excellent time-management skills. - Proficient in CAD and 3D desi...

I'm seeking the expertise of a 3D artist capable of creating an interior rendering of a bathroom. My objective is to visualize the space in a detailed and aesthetically pleasing way. Project Details: - One interior 3D rendering required (by 14-15/3 if possible) Skills and Experience: Ideal freelancers would possess: - A strong portfolio of 3D interior renderings - Expertise in working with different materials and lighting - Ability to deliver realistic, high-quality 3D renderings - Knowledge of modern bathroom design trends Your bid should incorporate the time required to understand the project needs, revisions, and final rendition. Please include "Bathroom Render" in your proposal so I know you've read the entire project description...

As an Airbnb host, I'm willing to take a bold step forward and make my property more appealing by adopting a modern design philosophy. Scope: - I need a skilled interior designer who can remodel three or more of my rooms. - Primarily, the functionality of these rooms should cater to sleeping needs of guests. Be that as it may, you can feel free to propose ideas that could maximize comfort and convenience without compromising on space. Skills and Experience: - I'm ideally looking for someone who has a rich background in modern interior design. - A portfolio with varied design solutions relevant to the Airbnb or hospitality industry will be a huge plus. - An understanding of space optimization techniques will be greatly appreciated. The proje...

I'm looking for an expert in interior design to revamp my small office with a minimalist aesthetic. The redesigned floor plan should accommodate both a meeting room and workstations. The meeting room should be designed to hold a maximum of 4 people effectively. Collaboration and comfort should be key themes in the design. Ideal skills would include experience in minimalist interior design, with a focus on effective space usage in small work places. Designs that promote productivity and a positive work environment would be highly appreciated.

I am looking for a skilled developer to create a robust car detailing and washing application for iOS, Android, and web platforms. Key Features: - The app needs to facilitate booking appointments for various car detailing services. - It should also have integrated payment solutions to enable seamless transactions. Services Offered: - Exterior car cleaning - Interior car cleaning - Waxing and polishing - Vacuuming - Window cleaning Ideal Skills: - Experience in developing cross-platform applications - Understanding of GPS-based location services - Knowledge of secure payment gateway integration.

I'm in need of an experienced architect who specializes in modern design. The project involves designing a residential building. While the entire building design is important, there's no particular focus as no preference was specified in terms of interior planning, exterior aesthetics or space utilization. A variety of skills and experience would be ideal for this project: - Strong understanding and experience with modern architectural style - Residential architecture experience - Ability to work with both the big picture design and smaller, detailed elements - Ability to translate my ideas and requirements into functional and appealing space - Strong communication skills to ensure alignment in vision and design execution. If this sounds li...

I'm in need of an architect with experience in modern layout design for an interior ADU project. It is a small residence, with an estimated square footage of less than 375 sqft - Key Requirements: - Experienced in designing modern ADU buildings. - Comfortable with small space design and layout - Able to optimize the use of less than 375 sqft. Please provide examples of your previous modern residential designs when making a bid. A solid understanding of how to maximize the use of small spaces is a must for this project. Your experience working on similar-sized residential projects will be highly favored.

I'm looking to renovate an old building and I need a detailed floor plan to assist my project. Here is what I need: Concept to retain the architectural authenticity under modern-day requirements (illustrate concept to retain architectural authenticity under modern-day requirements by providing drawings, floor pla...Concept to retain the architectural authenticity under modern-day requirements (illustrate concept to retain architectural authenticity under modern-day requirements by providing drawings, floor plans, etc. in 1 page I will provide the mark-up plan to you. As for format: JPG or PDF File, for easy viewing. Ideal freelancer for this project should have experience in architectural drawing and interior design. Experience with historic buildings renovation...

I am seeking a talented 3D artist to create a captivating photorealistic visualization for a property development. This will be utilized for our marketing and advertising initiatives. The materials created will be key in helping potential buyers see the beauty and potential of the property. Key elements to emphasize include: -Landscape design -Building architecture -Interior design The ideal candidate for this project should be adept at creating photorealistic 3D visualizations and have a keen eye for detail in order to portray our development in the best possible way. Experience in architectural and landscape 3D modeling is a significant bonus. This task requires a fine balance between artistic capabilities and technical expertise due to the high level of detail and...

...project requires both exterior and interior rendering. It's crucial to include bespoke furnishings and decor to reflect the exquisite detailing found in Hamptons style homes. Therefore, the freelancer must have a keen eye for detail and an excellent understanding of interior design. The final product should be delivered as static images. The ideal freelancer should have: - Significant experience in 3D rendering of architecture and interior design - A portfolio with examples of highly detailed home interior renders - Understanding or experience in Hamptons style designs - Ability to deliver high-resolution, static images in a timely manner. Your task will include: - Creating a detailed 3D render of the home exterior - Designing and rend...

Total land area 1700m square Building : 210m square (1 floor) Landscape : remaining. Requesting: interior design External design 3D images Electricity diagram Determine air conditioning locations Lighting distribution Distribution of plugs Description of raw materials and materials Executive drawings for ceilings Comprehensive implementation plans An inventory of materials and costs تصميم داخلي تصميم خارجي صور ثلاثية ابعاد مخطط كهرباء تحديد مواقع التكييف توزيع الاضاءة توزيع الافياش وصف الخامات والمواد رسومات تنفيذية للاسقف مخططات تنفيذية شاملة قائمة بحصر المواد والتكاليف