1 3

EXPOL JOIST SADDLES

EXPOL JOIST SADDLES

$35.50
$35.50
Sale Sold out
  • 5% off when total order is $600+ (applied at checkout; max discount $1,000 AUD)
  • 10% off when total order is $850+ (applied at checkout; max discount $1,000 AUD)
  • $10 flat-rate postage applies to Expol Accessories. If purchased together with Expol Underfloor Packs, standard delivery fees will apply.
View full details

Underfloor Insulation Fixing for New Floor Builds

EXPOL’s Underfloor Joist Saddles are specifically designed for new floor constructions, whether installing floorboards or sheet flooring. These purpose-built saddles clip securely over timber or steel joists, holding insulation panels firmly in place and ensuring correct positioning. They dramatically speed up underfloor insulation installation prior to laying the finished floor surface.

Key Benefits

  • Quick-Fit Installation – clips over joists from above with no fiddly fixings required.

  • Self-Locating Design – ensures perfect panel positioning every time.

  • Durable & Non-Corrosive – manufactured from 100% recycled plastic for long-term performance.

  • Convenient Packaging – supplied in 50-unit bags for efficient on-site handling.

  • Compact Dimensions – 68 mm deep × 120 mm long × 25 mm wide for easy integration.

Technical Overview

Panels measure 60 mm thick by 1200 mm long, are available to suit joist centres of 410 mm, 470 mm or 560 mm, and include concertina edges, non-halogen flame-retardant additives and closed-cell EPS for moisture and pest resistance.

Specifications

EXPOL WHITE - R 1.4
Property Value
R-Value 1.4 m²·K/W
Thickness 60 mm
Length 1200 mm
Joist Centres (Width) 410 mm, 470 mm, 560 mm
Edge Profile Concertina (compressible up to 20 mm)
Material Closed-cell Expanded Polystyrene (EPS)
Fire Safety Contains flame retardant
Moisture Absorption < 1% by volume
Warranty 50-year limited, BRANZ-appraised
Recyclability Offcuts fully recyclable at EPS drop-off
Pest Resistance No nutritional value for vermin
Joist Centre & Panels per Bag Coverage per Bag (m²)
410 mm – 11 panels 5.41
470 mm – 10 panels 5.64
560 mm – 9 panels 6.05
Download the full Expol Joist Saddle specifications here