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How to Build a Custom Window Bench with Built-In Shelves: Expert DIY Guide

Step 1

How to Build a Custom Window Bench with Built-In Shelves: Expert DIY GuideHow to Build a Custom Window Bench with Built-In Shelves: Expert DIY Guide

Bench and Shelves Measurements

Start with precise measurements for a professional result. Measure the height and width of the window area for the bench and shelving (Image 1). For the shelves, measure the side panels of the unit and the shelf boards themselves (Image 2).

Step 2

How to Build a Custom Window Bench with Built-In Shelves: Expert DIY Guide

Cut the Shelf Pieces

Use a scrap wood guide for straight cuts on the shelves with a circular saw. Always wear a mask when cutting medium-density fiberboard (MDF) to protect against dust.

Step 3

How to Build a Custom Window Bench with Built-In Shelves: Expert DIY Guide

Mark Shelf Positions

Lay out the upright supports and mark the exact positions for the shelves on the unit.

Step 4

How to Build a Custom Window Bench with Built-In Shelves: Expert DIY Guide

Pre-Drill Shelving Unit Parts

Pre-drill holes in the vertical sides and shelves to accommodate the screws, preventing wood split.

Step 5

How to Build a Custom Window Bench with Built-In Shelves: Expert DIY Guide

Assemble the Shelving Unit

Build the unit with wood glue for strength, then secure with countersunk screws.

Step 6

How to Build a Custom Window Bench with Built-In Shelves: Expert DIY Guide

Smooth Rough Edges

Sand any rough edges with a hand sander for a polished finish. Set the shelving unit aside.

Step 7

How to Build a Custom Window Bench with Built-In Shelves: Expert DIY Guide

Measure and Cut Bench Frame

Measure the bench frame area accurately. Cut 2x4 boards to length using a miter saw.

Step 8

How to Build a Custom Window Bench with Built-In Shelves: Expert DIY GuideHow to Build a Custom Window Bench with Built-In Shelves: Expert DIY Guide

Install the Bench Frame

Remove existing baseboard trim. Secure the long frame pieces to the wall with 2-1/2-inch screws (Image 1). Position the shorter 2x4s to form the frame outline (Image 2).

Step 9

How to Build a Custom Window Bench with Built-In Shelves: Expert DIY GuideHow to Build a Custom Window Bench with Built-In Shelves: Expert DIY Guide

Attach the Bench Skin

Measure and cut plywood to fit the frame with a circular saw (Image 1). Fasten it securely with wood screws, working around the entire frame (Image 2).

Step 10

How to Build a Custom Window Bench with Built-In Shelves: Expert DIY Guide

Measure for Storage Door

Position the top piece, then measure for the storage door below.

Step 11

How to Build a Custom Window Bench with Built-In Shelves: Expert DIY GuideHow to Build a Custom Window Bench with Built-In Shelves: Expert DIY Guide

Install the Storage Door

Cut the door using a circular saw and handsaw (Image 1). Attach a piano hinge to the door and bench top with 1/2-inch wood screws (Image 2).

Step 12

How to Build a Custom Window Bench with Built-In Shelves: Expert DIY GuideHow to Build a Custom Window Bench with Built-In Shelves: Expert DIY Guide

Add Trim and Paint

Secure trim around the bench with glue and finishing nails (Image 1). Complete the look with paint and crown molding (Image 2).