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Boxspan Ground Floors

A complete floor system

The Boxspan Steel flooring system for elevated sub-floors is one of our core products and where we started as a specialist in floor systems. Not only is the flooring system a solid alternative to a slab on ground it works economically supporting anything from a lowset granny flat or kit home up to a highset pole house. The three components that make up our floor system have each been designed to make your building process an easy one. The Boxspan floor frame comes pre-cut as a kit, Ezipier adjustable steel piers and Ezibrace sub-floor bracing make it a breeze to create the perfect platform on which to stand your house frame.

Why raised floors?

  • Sloping sites can remain largely undisturbed – eliminates cutting, filling and compaction.
  • Easy under floor inspection (the safest termite prevention method)
  • Environmentally sound – silt runoff into waterways is reduced
  • Reduces hidden cost of landscaping to repair site after building completion

Why Boxspan floors?

  • Beams are consistent in size giving you a very straight floor
  • No shrinkage with Boxspan, therefore no squeaky floors, cracks in cornices or doors or windows that stick
  • Termite proof – used in conjunction with steel wall and roof framing, expensive termite prevention can be eliminated (check with your local authority).

Why raised floors?

  • Sloping sites can remain largely undisturbed – eliminates cutting, filling and compaction.
  • Easy under floor inspection (the safest termite prevention method)
  • Environmentally sound – silt runoff into waterways is reduced
  • Reduces hidden cost of landscaping to repair site after building completion

Why Boxspan floors?

  • Beams are consistent in size giving you a very straight floor
  • No shrinkage with Boxspan, therefore no squeaky floors, cracks in cornices or doors or windows that stick
  • Termite proof – used in conjunction with steel wall and roof framing, expensive termite prevention can be eliminated (check with your local authority).

Boxspan Smart Bearers

“No tape measure needed”

For most floor framing systems, the perimeter structure takes the most time to think through and build, but with Boxspan Smart Bearers the install time is radically reduced.

Here’s why: our Smart Bearers are;
  • Printed with bracket locations.
  • Pre-punched with location screw holes for each bracket.
  • Printed with joist numbers next to each joist bracket, which correlates with numbers on each joist. J1, J2, J3 etc.

“Smarter than the average bearer”

Our internally developed computer aided design software ensures most of the information you require
to easily assemble the floor frame is conveniently located on the perimeter bearers.
Bracket type and position, joist number – it’s all there! See how they’re made.

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Perimeter ring beam – No blocking needed

Smart Bearers also perform as a perimeter ring beam for the Boxspan floor frame.

As a perimeter ring beam, bearers fully support external load-bearing walls including most point loads (i.e. from large residential door openings). This means theres no going back to add blocking or extra brackets to make sure above loads are transferred, like in other bearer and joist systems.

Boxspan saves you money

 No wastage

Boxspan floor frames are supplied as a complete, fully designed system. All beams are rolled to exact length and labelled in accordance with detailed working drawings. There is no cutting of joists or bearers on site and no wastage to get rid of.

 Saving on piers

Due to the long spans of Boxspan beams, the number of internal piers is reduced by up to 50% for large homes.

Pier layout comparison for 224m2 floor:
Typical timber internal pier layout (1800 centres) = 55 piers
Typical Boxspan internal pier layout (2400 centres) = 32 piers

= 42% saving

Boxspan saves you money

 No wastage

Boxspan floor frames are supplied as a complete, fully designed system. All beams are rolled to exact length and labelled in accordance with detailed working drawings. There is no cutting of joists or bearers on site and no wastage to get rid of.

 Saving on piers

Due to the long spans of Boxspan beams, the number of internal piers is reduced by up to 50% for large homes.

Pier layout comparison for 224m2 floor:
Typical timber internal pier layout (1800 centres) = 55 piers
Typical Boxspan internal pier layout (2400 centres) = 32 piers

= 42% saving

Sub-floor supporting structure

Ezipier icon
Ezipier
Flush to building line

Ezipier adjustable pier heads are designed for a flush finish allowing cladding to run down the building face and not kicked out by the pier head, post or ant cap leaving a neat finish.

Learn More

Ezibrace icon

Ezibrace
High capacity, fast installation

Cut installation time in half and in high wind applications the Ezibrace system can be adapted to achieve a higher capacity so you need fewer bracing bays to resist wind loads.

Learn More

Building in a bushfire prone area?

Building in or near the bush will mean that your property will need a site assessment to determine the bush fire attack level (BAL) (i.e. BAL-LOW, BAL-12.5, BAL-19, BAL-29, BAL-40, BAL-FZ). Boxspan floor systems are non-combustible and have been used in CSIRO testing jointly with the National Steel House Framing Association of Australia. We have a floor system solution to suit construction in each of the bush fire attack levels and comply with Australian Standard: AS3959 Construction of buildings in bushfire-prone areas 2009.

Further Information

Boxspan brochure

Boxspan Steel Flooring Brochure

Boxspan span tables

Boxspan Residential Span Tables

Don’t fear termites, anymore!

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