FreeBookshelf Plans
These bookshelf plans are simple, sturdy shelving units made from sheet goods: two sides, a top and bottom, fixed shelves and optional dividers. Change the width, height, depth and number of shelves, and the cut list and the free span of every shelf update.
Bookshelf Plans
The span matters more than anything: an 18 mm shelf loaded with books starts to sag beyond about 800 mm. The plans warn you and let you add a divider. Shelves are cut 2 mm short of the opening so they slide in without forcing the sides apart.
From a small bookcase to a full wall of shelves, each plan comes with the cut list worked out.
Common bookshelf sizes
| Dimension | Metric | Imperial |
|---|---|---|
| Depth for paperbacks | 200–250 mm | 8–10 in |
| Depth for large books and files | 300–350 mm | 12–14 in |
| Shelf spacing | 250–350 mm | 10–14 in |
| Maximum span, 18 mm board, books | about 800 mm | about 31 in |
| Height of a full-height unit | 1800–2200 mm | 72–87 in |
Guides
How to Build a BookshelfHow to build a bookshelf from one sheet of plywood or MDF: pick the size, cut the parts, drill for shelf pins, join the case, fit the back and stop shelves sagging.How to Drill Shelf Pin HolesHow to drill shelf pin holes that line up: 5 mm or 1/4 in shelf pins, rows 37 mm from the edges on the 32 mm system, a shelf pin jig, the right depth and spacing.How to Finish Plywood EdgesHow to finish plywood edges: iron-on edge banding, solid wood edging, filler for paint, rounding over the layers, and sealing edges for outdoor use.How to Stain PlywoodHow to stain plywood evenly: sand to 180, use a conditioner or gel stain, test on an offcut and seal the edges. The best stains for birch and pine plywood.MDF vs PlywoodMDF vs plywood for cabinets, shelves and doors: strength, sag, screw holding, paint finish, moisture, weight and cost compared, with the right use for each.Standard Bookshelf DimensionsStandard bookshelf depth is 10–12 in (25–30 cm). See standard heights and widths, the shelf spacing for each book size and the longest span before a shelf sags.
Frequently asked questions
What is the best wood for a bookshelf?
Plywood is the stiffest sheet for long shelves. MDF and melamine are cheaper and paint or clean well, but sag sooner: keep their spans shorter.
How do I stop bookshelf shelves from sagging?
Keep the span under 800 mm for 18 mm board, add a divider, use thicker board, or glue a strip under the front edge.