Assemble Drawer Boxes
From Under Stair Storage · Step 5 of 7 · Video by CR Carpentry & Remodeling

Showing 5:10–5:34 of the source video. Watch the full video with every moment.
What happens in this clip
Cut the necessary pieces for the drawer boxes according to the provided cut list. Once all pieces are cut, apply wood glue to the edges of the drawer box components and assemble them using pocket hole screws and a drill/driver. Ensure the drawer boxes are square and sturdy. Once assembled, cut the drawer faces from a matching plywood, again following the provided cut list. Apply wood glue to the front of the assembled drawer box, then attach the drawer face using small finish nails or brads. This creates a strong, clean front for each drawer.
Goal: Construct the internal drawer boxes and attach their faces.
What's used
Tools
- Brad Nailer
- Hammer and finishing nails
- Brad Nails
- Drill/Driver DeWalt
- Kreg Foreman Pocket Hole Jig Kreg
- Miter Saw DeWalt
- Plywood (Drawer Box Components)
- front
- and back of the drawer boxes.
- Plywood (Drawer Faces)
- Pocket Hole Screws
- Table Saw
- Track Saw Makita
- Wood Glue Titebond
About the full video
This project provides detailed, step-by-step instructions for building a full row of budget-friendly shop cabinets with both regular storage and drawer units. The design focuses on cost-saving techniques, such as using different plywood grades for visible and internal components, omitting cabinet backs, and utilizing specific hardware solutions. The project covers cutting all components, assembling the cabinet and drawer boxes, installing drawer slides, finishing the doors and drawer faces, and finally installing and leveling the cabinets and countertops.
Step 5 of 7: Assemble Storage Units
Assemble the drawer boxes by joining the sides, front, and back pieces using screws, nails, and wood glue. Ensure the boxes are square. If building pull-out carts, assemble the frame and attach the casters. For drawers, attach the drawer slides to the sides of the drawers and to the corresponding location within the under-stair cavity or frame structure.
Every video in Under Stair Storage
Step 1: Measure Under-Stair Space
- 0:18–0:19 Measure Cubbies and Acquire Drawer Components
- 1:06–1:52 Measure Cabinet Interior
- 0:17–0:37 Measure Closet Space
Step 2: Design Storage Units
- 0:00–0:08 Plan and Design the Storage System
- 0:56–3:20 Planning the Layout and Design Considerations
- 1:52–2:27 Design Pull-out Specifications
Step 3: Select Materials
- 0:00–0:09 Material and Tool Gathering
Step 4: Cut Components
- 0:21–3:56 Rip and Cross-Cut Drawer Components
- 0:40–2:20 Cut and Dimension Wood Components
- 0:29–0:54 Crosscut Plywood for Drawer Components
Step 5: Assemble Storage Units
- 7:16–8:26 Assemble Drawer Boxes
- 5:10–5:34 Assemble Drawer Boxes (this video)
- 3:10–4:31 Construct Drawers and Pull-out Trays
Step 6: Install Storage Units
- 12:07–12:15 Insert Pull-out Shelves
- 9:51–10:15 Install Drawer Boxes into Cabinet
- 0:58–1:07 Install Drawer-Side Slides and Insert Drawers
Step 7: Attach Handles and Finish
- 12:49–13:28 Final Sanding and Finishing
- 8:36–9:13 Final Adjustments and Finishing
- 6:31–6:47 Attaching Drawer Pulls (Knobs)
Questions about Under Stair Storage
The project summary lists an estimated time of 4 minutes, but it seems more complex. How long should I realistically expect this project to take?
The 4-minute estimate is likely a typo. Given the design, cutting of plywood, assembly of units, and installation, this intermediate project typically requires several hours to a full weekend, depending on your experience and the complexity of your design. Plan for at least 8-16 hours of work spread across multiple sessions.
What are the most important safety precautions I should take when building under-stair storage units?
Always wear safety glasses when operating cutting tools to protect your eyes from flying debris. Use gloves to prevent splinters, and ensure your work area is well-ventilated if using adhesives or finishes. When installing, securely anchor the units to the studs or solid framing to prevent tipping.
What kind of wood is best for these storage units, and how can I estimate material costs?
For durability and a good finish, 3/4 inch birch plywood, as listed in the materials, is an excellent choice. You'll need to precisely measure your under-stair cavity to calculate the exact amount of plywood, drawer slides, and caster wheels required. Expect material costs to vary, but budget a few hundred dollars depending on hardware quality and wood choice.
How do I accurately measure and design the storage units to fit my unique under-stair space, considering the slope?
Start by measuring the height, width, and depth of your stair cavity at multiple points, as walls are rarely perfectly square. Account for the stair's slope by creating a template from cardboard before cutting your final materials, ensuring your units will slide in and out smoothly without catching.
What are common mistakes DIYers make with under-stair storage, and how can I troubleshoot them?
A frequent mistake is inaccurate measurements, leading to units that don't fit or operate smoothly. Double-check all measurements before cutting and create a detailed cutting plan. If drawers stick, check if slides are level and plumb, and ensure there's enough clearance around the units.
Are there alternative materials or drawer mechanisms I can use if plywood and standard slides aren't ideal for my project?
Yes, for a different look or budget, you could consider solid pine boards for a rustic feel or MDF for painting, though MDF is less durable. Instead of traditional drawer slides, you could build simpler pull-out bins directly on caster wheels, or opt for fixed shelving if full drawer access isn't a priority.
Why are items like 'Designer Stencils' and 'Primed Baseboard Moulding' listed, and how are they typically used in this project?
These items are for aesthetic enhancements. Designer Stencils could be used to add decorative patterns to the drawer faces or the inside of the units. The Primed Baseboard Moulding would likely be used to trim out the exterior opening of the under-stair cavity, giving the installed units a more finished, built-in appearance.
Under Stair Storage
This project involves designing and building custom drawers or pull-out carts to maximize storage space within the often-underutilized area beneath a staircase. The process includes measuring the space, designing the storage units, selecting appropriate materials, cutting and assembling the components, and installing them into the stair cavity.
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