Markets
Monday, October 12, 2026
The Company Chronicle

General construction glossary

Blocking

Blocking is a short piece of lumber or steel fitted between studs or joists to stiffen the frame or give a fixing point.

Blocking is a short piece of lumber or steel fitted between studs or joists to stiffen the frame or give a fixing point.

Definition

Blocking is short framing placed between main members. It stops joists twisting, ties members together, and gives something solid to fasten to.

A plain example

Illustrative example only: a bathroom wall gets flat blocking at a stated height between studs so a grab bar or cabinet can later be screwed into solid wood.

Why it matters

Blocking placed before the walls are closed costs little. Without it, fixing heavy items later means opening the wall.

Common confusion

Blocking is not bridging, though the two overlap. Bridging is cross-bracing between joists; blocking is solid pieces.

On a project

Mark blocking locations on drawings before the wall is closed, and photograph the frame for later reference.

Quick answers

  • Why add blocking for grab bars? The bar needs solid backing, not only drywall.
  • Does blocking stop fire spread? Fireblocking is a specific code requirement with its own rules.
  • Who decides where it goes? The drawings, code, and the owner's list of future fixings.

Related terms

Always check the project drawings and specification, and confirm requirements with the engineer of record and the local authority.

Questions people ask

Why add blocking for grab bars?

The bar needs solid backing, not only drywall.

Does blocking stop fire spread?

Fireblocking is a specific code requirement with its own rules.

Who decides where it goes?

The drawings, code, and the owner's list of future fixings.

Sources and further reading

Sponsored

Have a project outline or drawings?

Organize your scope, then contact Digital Oro through its official channel. Availability, engineering, pricing and delivery terms need project-specific confirmation.

Text Digital Oro on WhatsApp Explore Digital Oro →

+52 1 984 452 3553 · the WhatsApp number Digital Oro lists publicly

Text Digital Oro

Digital Oro International advertises on The Company Chronicle. This guide was written by our editorial team from public sources and general professional practice; it does not describe a guarantee, quote or offer from Digital Oro International. Confirm current terms, prices and availability with the operator before you decide.

Business Spotlight

Want us to publish your business?

Our team writes and publishes articles about your business on The Company Chronicle every month, with a link to your website. Plans from $30 a month, cancel anytime.

Publish with us