Skip to main content
The Crafty CatsmanHybrid workshop field notesStart Here

One live build

TheCraftyCatsman Bookcase Calculator

Enter your dimensions, explore the parts, and print your cut list.

Build updates live35″ × 78½″ case
Step 01

Start with the opening.

Enter finished-opening measurements. Decimal eighths work here: 35.875 means 35⅞ inches.

Opening and shelf layout
in
Measure jamb to jamb at several heights.
in
Use the smallest floor-to-header reading.
in
Carcass depth before back and face frame.
Fixed top and bottom are added separately.
Case body
35″ × 78½″
Overall depth
8″
Interior width
33½″
Between shelf panels
14.8″
Fit, dado, and pivot settings

Change these when your opening or hardware layout calls for a different clearance.

in
in
in
in
in
The swing preview is illustrative.
Live model17 modeled pieces
Click the model or a cut-list row to connect them.
Preparing model17 pieces · 4 interior shelves

Planning study · verify the opening, swing path, pivot hardware, and loaded weight before cutting.

The finished hidden bookcase door swung open in the original build

Opening the cabinet shop

The finished door stays in view while the live model loads.
05 / 05
Assembly viewIllustrate the pivot and swing
The Crafty CatsmanBuild it your way
Choose a piece to see how it fits.Drag to orbit · pinch or scroll to zoom

Free Custom Cut List Calculator

This free hidden bookcase door calculator turns your opening dimensions, shelf count and material selections into a live 3D model and printable cut list. Explore the assembly and estimate materials from the same measurements. Confirm your actual stock thickness, joints, pivot hardware and swing clearance before cutting.

No signupInstant results
Your materialsEditable estimates
Built forReal openings

Reference ranges

Standard Bookcase Door Measurements

Standard Door Opening

  • Width: 30-36 inches (standard interior door)
  • Height: 80 inches (standard door height)
  • Starting gaps: ½" per side, ½" above and 1" below; adjust for your hardware

Bookcase Dimensions

  • Depth: 7-8 inches total
  • Start with 4 interior shelves; fixed top and bottom are separate parts
  • Standard wood: Poplar for frame, cabinet-grade plywood for construction

For a completely custom cut list based on your exact measurements, use the interactive calculator above.

What goes into the build

Materials to plan for

Lumber & Plywood

  • Case plywood for the sides, shelves, top and bottom
  • A separate plywood back; the calculator starts at ¼"
  • Face-frame stock for 1½" stiles and upper rails
  • Wider stock for the 3½" bottom face rail

Hardware

  • Heavy-duty pivot hinges
  • Chain bolt for latch mechanism
  • Decorative hollow book (for pull)
  • 16 gauge wire for pull mechanism
  • Wood glue, screws, and brad nails

Amazon Hardware Queue

Hidden Door Hardware Worth Pricing Before You Cut

The calculator handles dimensions, but hinge capacity, latch choice, caster support, shelf-pin layout, lighting, and friction points decide whether the finished bookcase behaves like a door instead of a wobbly cabinet.

As an Amazon Associate, I earn from qualifying purchases at no additional cost to you.

PivotHeavy-Duty Hidden Door Pivot HingeHidden door hardwareA current heavy-duty pivot hinge option to compare for hidden bookcase doors when the exact older build hinge is unavailable or not the right fit.
  • - Verify load rating against the fully loaded bookcase.
  • - Confirm swing direction, floor condition, and mounting clearances.
View on AmazonLatchNational Hardware V820 Chain BoltLatch mechanismA simple mechanical latch candidate for the hidden book pull mechanism used in the bookcase door project.
  • - Align the pull path before drilling.
  • - Test latch tension before closing up the back side.
View on AmazonSupportGate Caster Wheel SupportDoor supportA support-wheel option to evaluate when a loaded hidden bookcase needs help resisting sag at the far edge.
  • - Verify floor clearance and wheel path before adding one.
  • - Do not use a caster to hide undersized hinges.
View on AmazonHidden DoorHeavy-Duty Magnetic Door CatchesDoor holdUseful for cabinet doors, hidden compartments, and light-duty hold-closed behavior around a hidden-door build.
  • - Do not rely on magnets as structural hinges or security.
  • - Check pull strength against how the door is used.
View on AmazonShelf PinsKreg Shelf Pin JigShelving layoutA clean way to drill repeatable shelf-pin holes for adjustable shelves in a hidden bookcase or cabinet project.
  • - Confirm pin diameter.
  • - Drill test holes in scrap before touching visible panels.
View on AmazonLightingBLS LED Puck Lights with RemoteShelf lightingBattery puck lights for shelf accents, hidden-door reveals, cabinets, and small display zones.
  • - Plan battery access before mounting.
  • - Use warm or neutral light based on the room finish.
View on AmazonPullDecorative Wooden Faux Book BoxConcealmentA decorative book-box candidate for hiding the pull mechanism or adding believable shelf clutter.
  • - Check dimensions before designing the pull.
  • - Reinforce the connection if it will operate a latch.
View on AmazonSmooth MotionAPT UHMW Polyethylene TapeGlide surfaceA slick tape option for reducing friction at rub points, shims, guides, or hidden-door contact surfaces.
  • - Use only where a low-friction surface is safe.
  • - Clean the surface before applying adhesive tape.
View on Amazon

Ready to build?

Take the custom cut list back to the full hidden door guide.

Get step-by-step instructions, hinge guidance, latch details, and the full build sequence in the comprehensive hidden bookcase door guide.

View Complete Hidden Bookcase Door Guide