What nails for joist hangers?

Use only 10d x 1-1/2" joist hanger nails (short, fat nails). Never substitute regular nails, screws, or roofing nails. Some hangers now accept specific structural screws.

Can I use screws in joist hangers?

Only if the hanger manufacturer specifically approves a particular screw model. Simpson Strong-Tie SD screws are approved for many of their hangers.

Joist Hangers

Hardware & Fasteners

Structural Connectors

Budget: $1-$3 each (standard 2x6-2x8) | Mid-range: $3-$6 each (2x10-2x12) | Premium: $8-$20 each (heavy-duty, adjustable, or specialty)

Joist Hangers: Structural Metal Connectors for Floor & Deck Framing (2026)

Prepared by Lumberama's Building Materials Team

|Last updated May 25, 2026|Sources & methodology

Joist hangers are galvanized steel brackets that connect floor joists, deck joists, and rafters to beams and ledger boards. They provide a strong, code-approved structural connection that prevents joists from pulling away or rotating. Simpson Strong-Tie is the industry standard manufacturer.

Key Features

Galvanized steel for corrosion resistance; Sized for standard lumber dimensions; Code-approved load ratings; Multiple joist sizes from 2x4 to 2x12; Specialty hangers for angled and skewed connections

Specifications

Sizes: 2x4 through 2x12

4x6 through 4x12 | Material: 18-gauge galvanized steel | Coating: ZMAX or G185 galvanized | Fasteners: 10d x 1-1/2" joist hanger nails | Load capacity: 400-2000+ lbs (varies by model)

Applications

Floor joist to beam connections; Deck joist to ledger board; Rafter to ridge beam connections; Header to trimmer connections; Stair stringer attachment

Installation Overview

Position hanger on beam at joist location. Nail one side to beam. Insert joist into hanger, check level. Nail remaining holes on both sides and face. Use only specified joist hanger nails - never substitute.

Pros & Cons

Pros

✓ Code-approved structural connection; Prevents joist separation; Easy to install; Widely available standard sizes

Cons

✗ Must use correct nails (not screws unless specified); Adds cost per joist connection; Galvanizing can be damaged during install; Must match exact lumber dimensions

Top Brands

Simpson Strong-Tie

USP Structural Connectors

MiTek

Code Requirements

IRC R502.6 requires approved connectors at joist-to-beam connections. Must use manufacturer-specified fasteners only. ZMAX coating required for ACQ-treated lumber contact. Install per manufacturer installation instructions.

Buying Tips

Always use the manufacturer-specified fasteners - wrong nails void the structural rating; Buy ZMAX-coated hangers for treated lumber contact; Simpson Strong-Tie's connector selector tool helps find the right hanger for your application