DIY Vinyl Record Storage Crate With Reinforced Mitered Corners

This is the smaller, standalone companion to the record-player media console built earlier this year: a mitered plywood crate sized to hold a stack of vinyl records upright, with the corners cut at 45 degrees and reinforced with glued-in wood splines rather than just butt-joined and screwed together. It’s built to be sold on its own, for anyone who wants somewhere for their records to live without taking on a full media console project.

Landscape view of the finished all-birch crate with the same vinyl record leaning inside, warm workbench lighting, flag and shop tools visible behind it
The finished crate holding its first record.

Setting Up the Miters

The crate’s four corners are mitered rather than butt-joined, which means the table saw’s blade angle has to be exact before any panel gets cut. A digital angle gauge set against the blade confirms a true 45.0 degrees here. It’s worth checking directly rather than trusting the saw’s built-in angle scale, since even a small error compounds across four corners and shows up as a visible gap when the box comes together.

Close view of a digital angle gauge reading exactly 45.0 degrees, set against the tilted table saw blade, confirming the miter angle used for the crate's corner joints
A confirmed 45-degree blade angle for clean mitered corners.
A table saw blade tilted for a miter cut, with a digital angle gauge resting on the saw table and a finished plywood crate visible on a stool in the garage behind it, evening light through the open garage door
The table saw set up for mitering, with a finished crate visible in the background.

Gluing Up the Mitered Corners

Blue painter’s tape does double duty during glue-up: taping across a miter seam before folding it closed keeps the joint aligned and holds a hinge-like tension while the glue is still wet, and it keeps squeeze-out off the visible face of the plywood. Once the box was folded up into its final shape, corner clamps and bar clamps arranged in an X pattern held all four mitered joints square while the glue cured.

Macro close-up of a mitered plywood corner joint with a bead of wood glue along the seam and blue painter's tape framing it
A close look at the glued miter seam before the tape comes off.
A mitered plywood crate being held square with corner clamps and bar clamps during glue-up, blue painter's tape on the seams, a second, darker two-tone crate visible on the workbench behind it
Squaring up the mitered corners with corner clamps while the glue cures.
A mitered plywood crate clamped square on the workbench with bar clamps arranged in an X pattern across all four corners, holding the glue-up true while it cures
Bar clamps arranged corner-to-corner hold the mitered crate square during glue-up.
Two mitered plywood panels taped along the seam with blue painter's tape and glued together, forming one corner of the crate, shown close-up on the workbench
Gluing two mitered panels together, taped to keep the seam tight while it sets.
Looking into the open top of the mitered crate mid-glue-up, corner clamp visible spanning the opening, a second crate and other shop pieces visible in the background
Looking into the crate mid-glue-up, corner clamp holding the joint square.

Reinforcing the Corners With Splines

A mitered joint alone is mostly glued end grain to end grain, which isn’t the strongest joint on its own, so each corner here gets a thin wood spline glued into a small slot cut across the miter, adding real long-grain glue surface and locking the joint mechanically. It’s a small extra step that meaningfully strengthens a box that’s going to get loaded with the actual weight of a record collection and picked up and moved.

Macro close-up of a mitered corner with a thin wood spline fitted into a small routed/cut mortise slot, reinforcing the miter joint from the inside
The spline that reinforces each mitered corner from the inside.

Not every piece of spline stock survives the process. One thin strip split while being fit into place during this build, a reminder that thin stock this size needs to be handled carefully and that a spare strip or two is worth having on hand.

A thin strip of wood, split and splintered at one end, clamped between two corner-clamp jaws on the crate, spline stock that broke during fitting
A thin spline strip split while being fit into place. Not every piece survives the process.

Cleaning Up the Joints

Once the splines and glue had cured, a wide chisel cleaned up the corners by hand, trimming any proud spline material and squaring up the joint line rather than relying on sanding alone to get a crisp edge. A Japanese pull saw and a length of edge-banding-style strip stock were also part of the corner-detail toolkit for this build.

A wide chisel cleaning up a scored line at a mitered plywood corner joint, pencil layout marks visible on the wood
Chiseling the joint clean and flush after glue-up.
Flat-lay of a Japanese pull saw, a length of edge-banding-style wood strip, a roll of blue painter's tape, and a sanding pad with a wood dowel, arranged on the workbench
Hand saw, edge strip stock, painter’s tape, and a sanding pad: some of the hand tools used on the corners.
Looking down into the finished mitered crate's interior, showing the clean mitered top edge and interior plywood grain
The cleaned-up mitered top edge, seen from inside the crate.

Two Crates From This Build

The photos from this build actually show two crates: an all-birch version, and a second one finished with a lighter birch top paired with a noticeably darker, walnut-toned plywood body for some visual contrast. Both share the same mitered, spline-reinforced construction. The two-tone version is a nice option for anyone who wants the crate to stand out a bit more as a piece of furniture rather than disappear into the room.

A second, closed crate viewed from above, showing a light birch plywood top panel (with two visible brad-nail or screw holes) paired with a noticeably darker, walnut-toned plywood body
A second crate from this build in a two-tone finish: light top, dark body.

The Finished Crate

Finished and sanded, the crate is sized to hold a stack of standard 12″ records upright, which is really the only dimension that matters for a piece like this. It’s shown here with one record set inside just to confirm the fit.

Wider angled view of the finished crate with the record inside, showing the full mitered box shape and proportions
A wider look at the finished crate and how a standard 12″ record sits inside it.

A Companion to the Record-Player Console

This crate was built alongside the larger mid-century record player stand with sound bar and vinyl storage, a full media console with a turntable shelf, a dedicated sound bar bay, and built-in record storage. This crate is the standalone answer for anyone who doesn’t need all of that: just a solid, well-built place to keep records, on its own. With U.S. vinyl revenue having crossed $1 billion in 2025 for the first time according to the RIAA, and DIY plans for exactly this kind of build already for sale on Etsy, a well-built record crate is a useful small project, and, in this case, one Jeremy is building to sell.