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What's in the kit?

0:08

Instructions

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Heavy Duty Membrane

0:15

Grids with locking pins attached

0:18

Start by marking out your area. Tip: make your area larger than the base of your building.

0:24

Prepare your ground (the sub-base)

0:31

Remove turf and compact the ground

0:35

Option 1 - Use Builders Sand

0:40

Rake the sand level

0:45

Tamp the sand down using a timber bearer

0:48

Then check that the sand is level

0:51

Pour in 10mm round pea gravel ancake level

0:56

Compact the ground with your feet

1:00

Layout the membrane provided

1:07

Layout your ProBASE grids

1:15

First, remove the lockings

1:18

Grids simply click together

1:21

For a full base kit, interlock all grids

1:27

Options for design: Leave gaps between grids to enlarge your ProBASE, and fill the gaps with gravel.

1:37

If you design a base with gaps, you can stagger the grids to suit your design

1:42

Top tip: Fold your membrane at the edges

1:48

Fill the perimeter grids with pea gravel

1:55

Top Tip: For larger buildings with heavy contents on poor ground conditions, fill all grids with pea gravel.

2:03

Optional designs for your ProBASE

2:09

Enlarge your base to allow overlap for French drains

2:13

Top Tip: Throughout the installation, keep checking your levels.

2:21

Finally Erect your building

2:26
ProBase Plastic Shed Base Foundation - How To Install
1.5KLikes
968,191Views
2015Feb 1
A1 Sheds: ProBase Shed Base - How to Install Installation Guide PROBASE: NOW EVEN STRONGER! This ULTRA STRONG plastic shed base grid foundation is the only grid system on the market designed to carry a vertical load such as a garden building WITHOUT the need to fill the grids with gravel. PROBASE GRIDS grids are tested empty at 51 tonnes of vertical load per grid, making it EASY for the DIY NOVICE to achieve a PROFESSIONAL quality shed base for your garden building. ProBASE shed base grids are the strongest plastic grid base system available in the UK today and carry a manufacturer's 25-year guarantee. BEWARE OF OTHER GRID SYSTEMS: All other grids on the market are gravel retention systems, not shed bases (despite being advertised as such). At first glance, they appear to be the same, however they act in a completely different way. Gravel retention systems are not strong, instead they need to be filled with gravel to give it strength, and it is this gravel that gives them strength. Cheaper gravel retention grids are designed to sit on top of 6" of a compacted type-1 hardcore sub-base, because they don’t have any load spreading feet. In comparison, ProBASE has proper load-spreading feet, and is designed to sit down straight onto your compacted ground without purchasing additional materials. ProBASE is available at the lowest price in the UK from https://a1sheds.co.uk/shed-bases/prob...

A1 Sheds

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