Tape Measure
Hacksaw and sharp utility knife
Pencil or marker pen
Electric Screwdriver & Drill
6mm Masonry Drill Bit
IMPORTANT Please read through all instructions before beginning installation.
Suitable to fit with a manual or automatic commercial roller, sectional doors and up & and over, roller, side-hinged and sectional domestic garage doors.

For the best results the surface should be smooth, flat, and devoid of any bumps or troughs. Remedial action should be undertaken to rectify uneven surfaces prior to fitting the seal.

Always unpack your box and check the contents before commencing installation.

For rough surfaces GaraDry adhesive & sealant should be used underneath the threshold seal to ensure a watertight seal.
Step One 1

Preparing the installation area

Thoroughly sweep the installation area to remove any dust and debris prior to fitting.

Step Two 2

Choose the installation position

Choose an installation position


Position A

The threshold is installed between the door tracks.

Position B

The threshold is installed wall-to-wall behind the garage door tracks.

Position C

The threshold seal is installed slightly back from the door and mitred around the door tracks. This may be suitable if the door has an alarm sensor that cannot be removed.

Step Three 3

Measure the installation area

Based on the position you selected in Step 2:

a) Measure the width of the opening in between the door tracks

b) Measure the distance wall-to-wall

c) Measure around the door tracks, and the distance between the threshold seal fitting position and the wall

Step Four 4

Insert the joining bar

For threshold seals longer than 2.5m, the kit contains multiple aluminium sections which must be joined together.

Insert the joining bar into the end of one length of the threshold and lock firmly in place with a grub screw (use the included allen key to tighten the grub screw).

Step Five 5

Join together aluminium sections

Slide another section of aluminium threshold over the joining bar making sure that there is no gap between the lengths.

Tighten in place with a grub screw.

Repeat for all remaining lengths, BUT leave the last length unattached at this stage.

Step Six 6

Cutting the threshold to size

Based on the position you selected in Step 2:

a) Mark and cut the threshold to size to sit in between the door tracks (notch the seal around the tracks as shown)

b) Mark and cut the threshold to size to fit from wall-to-wall

c) Measure the distance between the wall and the back edge of the threshold seal and cut the end sections to this length. Using a mitre saw, cut the threshold seal sections accordingly (TOP TIP: Using cardboard templates to ensure your measurements and cutting is correct).

Step Seven 7

Check the fitting

Attach the final length and lay the entire threshold across the installation area to ensure a good fit.

Step Eight 8

Insert the bottom seals

Slide the continuous bottom seals into the underside of the threshold on either side, and then cut off any excess.

Step Nine 9

Mark the drill holes

Return the threshold seal to an upright orientation and lay it into position.

Using a marker pen/pencil, mark where to drill the holes in the concrete.

Step Ten 10

Drill pilot holes in the concrete

Remove the threshold, and using a 6mm drill bit, drill the holes for the screws.

Once completed, ensure the surface is brushed clean to remove debris.

Step Eleven 11

Apply the adhesive (optional)

In the case of the floor being uneven, lay a bed of adhesive underneath where the threshold seal is to be fitted to ensure a watertight seal.

With the threshold seal in position, mark along the front and back edge of the seal with a marker pen/pencil.

Remove the threshold seal and mark a line approx 10mm inside the existing lines, followed by a zig zag line in the middle of them.

Apply adhesive & sealant following the pencil lines created.

Step Twelve 12

Lay the threshold

Place the threshold seal back into position.

Insert all the screws in their respective holes and hand tighten each of them, or use an electric screwdriver but do not tighten them fully.

Ensure that all screws fit snugly.


Step Thirteen 13

Screw in place

Apply pressure to the threshold seal with your foot.

Using an electric screwdriver and T30 screwdriver bit (included in the kit), tighten the screws into place making sure they are flush but do not overtighten.

Step Fourteen 14

Wipe Seal Clean

Wipe the surface of the threshold seal to remove any grease or dirt.

Step Fifteen 15

Seal the edges

Depending on the fitting position of the threshold seal:

a) Apply sealant & adhesive around the edges of the threshold seal and the frame to ensure a watertight seal.

b) Apply sealant & adhesive around the edges of the threshold seal and the wall to ensure a watertight seal.

c) Apply adhesive and sealant in the mitre join of the threshold seal, and around the edges of the seal to ensure a watertight seal.

Step SIxteen 16

Test the threshold (optional)

Using a bucket of water, or a hosepipe, test the threshold seal for water ingress.

If water enters underneath the threshold seal run a line of adhesive & sealant along the front and back edge of the seal.

Alternatively, unscrew the threshold seal and apply a bed of adhesive as per Step 11 of the instructions.