How to Build a Modern Dog House with a Covered Porch – Step-by-Step DIY Guide (Metric Units)


A Golden Retriever resting on a blanket inside a modern style wood dog house with a black roof and base. The dog house is located on a stone paving in a comfortable outdoor courtyard surrounded by trees, greenery, and a brick wall

Looking for a comfortable and stylish outdoor shelter for your dog? This modern DIY dog house combines a practical enclosed space with a covered front porch, creating a comfortable retreat while adding a distinctive architectural touch.

In this step-by-step guide, you’ll learn how to build the structure from the elevated base and floor framing to the wall assembly, acrylic windows, roof framing, exterior sheathing, and final finishes. The design also features a sloped roof and durable exterior materials suitable for outdoor use.

The complete construction plans include detailed drawings, dimensions, material references, and building details to help you follow each stage with greater accuracy. The plans are prepared in metric units and correspond to Dog House Model L, 1.935 × 1.245 m. 

Project Dimensions

Four-view architectural blueprint showing the front, left, right, and back dimensions of a Model L modern dog house with a sloped roof, detailing the overall structure and wall measurements

Materials Needed 

Structural Materials

  • 45 × 90 mm planed pine timber
  • 45 × 45 mm planed pine timber
  • 90 × 90 mm pressure-treated timber for the optional base
  • 12 mm exterior-grade or marine-grade plywood
  • 15 mm exterior-grade or marine-grade plywood
  • 4 mm clear acrylic / Plexiglass panels

Framing & Hardware

  • Ø5 × 75 mm galvanized wood screws
  • Ø5 × 40 mm galvanized wood screws
  • Ø5 × 35 mm structural screws
  • 30 × 3.1 mm galvanized nails
  • 45 × 45 mm joist hangers or equivalent
  • Polyurethane construction adhesive or water-resistant PVA glue
  • Exterior-grade silicone sealant

Exterior & Roofing Materials

  • Self-adhered cap sheet roofing membrane
  • Exterior-grade wood sealer
  • Exterior-grade sealant
  • Roofing accessories and edge termination materials as indicated in the plans

Finishes

  • Exterior-grade white wood finish
  • Exterior-grade matte black paint
  • Exterior polyurethane
  • Spar urethane or marine-grade varnish 

Shopping List

Material takeoff summary table showing the estimated materials and purchase quantities needed to build a Model L modern dog house, listing items like 12mm exterior grade plywood and 45x90 mm lumber with metric units

Tip: For exact quantities, cut dimensions, and purchase units, always refer to the Bill of Materials and individual construction sheets included with the complete plans. The material takeoff quantities are estimates and already account for cutting/waste allowances where specified. 

Step 1 – Build the Optional Base

Assemble the three 90 × 90 mm pressure-treated timber beams to create the elevated base. Position them evenly and ensure they are level, aligned, and stable before installing the floor framing.

Step 1 3D diagram showing three parallel red rectangular base pieces labeled PT-1 for building the foundation of a Model L modern dog house

Step 2 – Build the Floor Frame

Assemble the 45 × 90 mm timber members to form the floor frame. Install the floor joists according to the layout shown in the plans, keeping them level, straight, and properly aligned before securing all connections. 

 

Step 2 3D diagram showing the red floor framing structure with labeled parts JF-1, JF-2, BK-1, and BK-2 for building the base of a Model L modern dog house

Step 3 – Install the Floor Sheathing and Bottom Plates

Install the floor sheathing over the completed floor frame, then position and secure the 45 × 90 mm bottom plates according to the wall layout. Ensure the plates are properly aligned and securely fastened before beginning the wall framing.

Step 3 3D diagram showing the installation of the floor panel labeled PL-0 and bottom plates BP-1, BP-2, BP-3, and BP-4 on the base frame of a Model L modern dog house

Step 4 – Build the Wall Frames

Assemble the wall frames using 45 × 90 mm timber, following the stud, opening, and brace layout shown in the plans. Secure the studs to the bottom plates and install the top plates to create a rigid and properly aligned structure.

Step 4 isometric diagram showing the red wall framing structure with labeled parts ST-1, TP-3, and BR-1 for building a Model L modern dog house

Step 5 – Build the Window Frame

Build the window frame using 45 × 90 mm timber, following the opening dimensions and frame layout shown in the plans. Assemble the frame securely and install it within the wall opening, ensuring it is properly aligned and level before proceeding with the acrylic glazing. 

Step 5 isometric diagram showing the window structure framing with labeled parts FR-1, FR-2, and ST-2 on the wall frame of a Model L modern dog house

Step 6 – Install the Interior Wall Panels

Install the 12 mm exterior-grade or marine-grade plywood panels on the interior faces of the wall framing, following the panel layout shown in the plans. Align the panels carefully and secure them to the framing, leaving the specified expansion gaps between adjacent panels.

Step 6 isometric diagram showing the installation of interior panels labeled PL-1 through PL-7 on the wall and roof frame structure of a Model L modern dog house

Step 7 – Build the Roof Frame

Assemble the roof framing using 45 × 90 mm and 45 × 45 mm timber, following the support, beam, joist, and blocking layout shown in the plans. Ensure all members are properly aligned and securely fastened before installing the roof sheathing.

Step 7 isometric diagram showing the roof framing structure with red beams and labeled parts SP-1, SP-2, SP-3, SP-4, BK-3, JR-1, and TP-4 for building a Model L modern dog house

Step 8 – Install the Exterior Wall Sheathing

Install the 12 mm exterior-grade or marine-grade plywood panels over the exterior wall framing, following the panel layout and window openings shown in the plans. Align the panels carefully, leave the specified expansion gaps, and securely fasten them to the framing.

Step 8 isometric diagram showing the installation of exterior panels labeled PL-8, PL-9, PL-10, and PL-11 on the roof and wall structures of a Model L modern dog house

Step 9 – Install the Roof Sheathing

Install the 15 mm exterior-grade or marine-grade plywood over the roof framing, following the roof panel layout shown in the plans. Keep the panels properly aligned, leave the specified expansion gaps, and securely fasten them to the roof joists before installing the roofing membrane.

Step 9 isometric diagram showing the installation of the roof panel labeled PL-12 on the roof structure of a Model L modern dog house

Step 10 – Install the Self-Adhered Cap Sheet Roofing

Install the self-adhered cap sheet roofing membrane over the completed roof sheathing. Ensure the roof deck is clean and dry, then apply the membrane according to the manufacturer’s requirements for adhesion, overlaps, and edge termination.

Step 10 isometric diagram showing the installation of the roof cap sheet labeled CP-1 on the roof structure of a Model L modern dog house

Step 11 – Install the Acrylic Windows and Apply the Finishes

Install the 4 mm clear acrylic panels in the prepared window frames and seal the perimeter to prevent water infiltration. Complete the exterior with the specified white wood finish, matte black paint, and natural wood protective finish as indicated in the plans.

3D diagram showing the finishing materials for the Model L modern dog house, including a self-adhered cap sheet for the roof, white wood finish for the walls, natural wood finish for the trim, 4mm acrylic for the windows, and matte black paint for the base

Preview the Building Plans

Take a look inside the plans and see how the project is organized, including detailed drawings, construction steps, material references, and building details. This video gives you a preview of what’s included in the complete plan set.


Ready to Build This Modern Dog House?

Bring this Modern Dog House with Covered Porch to life with a complete set of detailed construction plans. Get the drawings, dimensions, material references, and step-by-step building details needed to build Dog House Model L.

Thank You for Choosing JBGArquitectura

Thank you for choosing our plans and supporting JBGArquitectura. We hope this guide helps you bring this modern dog house to life and create a comfortable, durable shelter for your dog.

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