If you don't have the tools to glue and flatten large boards, several companies sell pre-assembled solid wood tops made to your exact dimensions.

Specializes in high-quality plywood and premium hardwoods for custom furniture, providing expert advice for DIYers. Anawalt Lumber Co Hardware store ClosedWest Hollywood, CA

: Specializes in wide-plank tops, including large round dining surfaces up to 60 inches in diameter.

For furniture-grade projects, local lumber yards are superior to home improvement stores because they offer "kiln-dried" wood with lower moisture content (around 11%), which prevents the table from warping later. Many local yards in the Los Angeles area also allow you to "hand-select" your specific boards. Bohnhoff Lumber Co Building materials supplier ClosedLos Angeles, CA

: The go-to source for "live edge" slabs, which preserve the natural curve of the tree on the sides of the table. 3. Choosing the Right Wood Species How To Get Good & Cheap Lumber From The Box Store

A historic Los Angeles yard known for a massive selection of hardwoods, softwoods, and exotic species. They allow customers to hand-pick their own lumber and offer milling services to flatten or cut your wood to size. House of Hardwood Lumber store ClosedSawtelle

A more neighborhood-friendly option with locations in West Hollywood and Los Angeles. They are praised for helpful staff who can often cut boards to your requested size on-site. Anderson Plywood Sales Plywood supplier ClosedClarkdale

Despite the name, they carry premium dimensional lumber and are highly rated for helping beginners select the right wood for projects like bookcases and tables. 2. Online Custom Tabletop Builders (Best for Convenience)