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Restraint Straps

Restraint straps are used on roof joints, trusses or rafters to reinforce metal work for additional support. Our heavy duty restraint straps are available in various lengths and sizes to suit all projects, and they’re available to order online or Click and Collect from your local Howarth Timber branch.

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  • Expamet Heavy Duty Horizontal Restraint Strap & Bent 100mm Expamet Heavy Duty Horizontal Restraint Strap & Bent 100mm

    Expamet Heavy Duty Horizontal Restraint Strap & Bent 100mm

    £5.50 - £17.85 each (Ex VAT)
    £6.60 - £21.42 each (Inc VAT)
    This galvanised Heavy Duty (horizontal) Restraint Strap features a 100mm Bent piece. 6mm fixing hole dimensions to suite 4 x 75mm round wire nails. Build in with downstand tight against face of block. Floor fixing: Across 3 joists (perpendicular) with...
    £5.50 - £17.85 each (Ex VAT)
    £6.60 - £21.42 each (Inc VAT)
  • Expamet Heavy Duty Horizontal Restraint Strap & Bent 150mm

    Expamet Heavy Duty Horizontal Restraint Strap & Bent 150mm

    £5.50 - £17.85 each (Ex VAT)
    £6.60 - £21.42 each (Inc VAT)
    This galvanised Heavy Duty (horizontal) Restraint Strap features 150mm bent element. It also features 6mm fixing hole dimensions to suite 4 x 75mm round wire nails. Build in with downstand tight against face of block. Floor fixing: Across 3 joists...
    £5.50 - £17.85 each (Ex VAT)
    £6.60 - £21.42 each (Inc VAT)
  • Expamet Heavy Duty Horizontal Restraint Strap & Twist 100mm

    Expamet Heavy Duty Horizontal Restraint Strap & Twist 100mm

    £5.50 - £17.85 each (Ex VAT)
    £6.60 - £21.42 each (Inc VAT)
    This galvanised Heavy Duty (horizontal) Restraint Strap featuring a Twist. This metalwork also features 6mm fixing hole dimensions to suite 4 x 75mm round wire nails. Build in with downstand tight against face of block. Floor fixing: Across 3 joists...
    £5.50 - £17.85 each (Ex VAT)
    £6.60 - £21.42 each (Inc VAT)
  • Expamet Heavy Duty Restraint Strap Bent 100 x 27.5mm

    Expamet Heavy Duty Restraint Strap Bent 100 x 27.5mm

    £4.06 - £9.09 each (Ex VAT)
    £4.87 - £10.91 each (Inc VAT)
    Expamet Engineering Heavy Duty Restraint Straps are the ideal choice for building projects when new walls or floors need to be created, long-lasting galvanised steel straps will help anchor structures during your next build. These Expamet straps can be...
    £4.06 - £9.09 each (Ex VAT)
    £4.87 - £10.91 each (Inc VAT)
  • Simpson Heavy Engineered Restraint Strap 100 x 38mm Simpson Heavy Engineered Restraint Strap 100 x 38mm

    Simpson Heavy Engineered Restraint Strap 100 x 38mm

    £1.93 - £5.25 each (Ex VAT)
    £2.32 - £6.30 each (Inc VAT)
    A direct replacement for traditional restraint straps, the innovative design of these lightweight straps allows ease of handling and installation whilst maintaining the structural strength and robustness of much heavier weight types. The HES (heavy...
    £1.93 - £5.25 each (Ex VAT)
    £2.32 - £6.30 each (Inc VAT)
  • Simpson Heavy Restraint Straps Bent 100 x 5mm Simpson Heavy Restraint Straps Bent 100 x 5mm

    Simpson Heavy Restraint Straps Bent 100 x 5mm

    £3.68 - £9.18 each (Ex VAT)
    £4.42 - £11.02 each (Inc VAT)
    The H and L straps are designed to The Building Regulations for horizontal and vertical restraint. Heavy restraint straps meet requirements for lateral restraint of roof trusses, rafters and joists tied into masonry walls. Light restraint straps are...
    £3.68 - £9.18 each (Ex VAT)
    £4.42 - £11.02 each (Inc VAT)

Restraint Straps

When using restraint straps for joists, they should fit tightly against the masonry walls and should be spaced no more than 2 metres apart for maximum effectiveness.

Frequently Asked Questions

What are restraint straps used for?
Restraint straps are necessary for the restraint of floor and roof structures to walls. This is usually to stop bulging or cracking of walls.

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