Description
The base track 33mm 2.5m is an aluminium starter profile for external wall insulation, sold here in single 2.5 m lengths. It is fixed along the bottom of the wall before the first insulation board goes on: the boards sit on it, it guards their lower edge, and a drip along its front sends rainwater off the facade. It is stocked with the other EWI fixings and base tracks.
What the Base Track 33mm 2.5m Does
PROFIGIPS, the Polish maker, calls this part a plinth profile, or starter trim (product code AC). It makes each width to suit a thickness of polystyrene or mineral wool, and the profile does three jobs at the base of an insulated wall:
- Carries the first row of boards, so every course above starts from one straight line.
- Protects the bottom edge of the insulation, where it is most easily knocked and wetted.
- Throws water clear with the drip on its front edge, so rain running down the render drops off instead of creeping back to the wall.
Why Fit the 33 mm Track
- Made for the job. It is a purpose-made aluminium starter profile with a drip, not a general-purpose angle cut to fit.
- A width for thinner boards. 33 mm is the narrowest width in the maker's own range, so it suits the slimmer insulation used where space at the base is tight.
- Easy to handle. A 2.5 m length is short enough for one person to hold, level and fix.
- Bought singly or by the carton. Take single lengths for a small job; PROFIGIPS packs this width 20 to a carton, which is 50 m of track (20 × 2.5 m).
- Part of one family. The same profile comes in other widths at Renders World, so a wall that changes thickness can keep one base line.
33 mm Base Track Specification
| Property | Value |
|---|---|
| Product | Plinth profile (starter trim), code AC |
| Maker | PROFIGIPS Sp. z o.o., Poland |
| Material | Aluminium |
| Width | 33 mm |
| Length sold | 2.5 m (the maker also makes 2.0 m) |
| Front edge | Drip to shed rainwater off the facade |
| For insulation | Polystyrene (EPS) or mineral wool |
| Maker's carton | 20 lengths |
| Maker's pallet | 5,500 lengths |
| Standard | PN-EN 13658-2:2009 (maker's declaration 01/2023) |
How to Fit the 33 mm Track
- Check the board. Measure the insulation you will fit at the base and make sure it matches the base track 33mm 2.5m before ordering a full run.
- Mark one level line around the whole wall, so every length is fixed to the same height.
- Fix each length to the wall along that line with fixings suited to the masonry, then check the run with a level before any adhesive is mixed.
- Clip on the front profile. A clip-on profile fits onto the front of the aluminium track, adds a second drip nose and a mesh wing that runs up the front of the insulation into the base coat. Renders World suggests one clip-on profile for each length of track.
Mixed Widths on One Wall
Where the insulation gets thicker part-way along a wall, change to the wider track at that point and fix both to the same line. The drips then run as one edge, and the base of the render stays straight.
The full first-day method — setting the datum, cutting corners, joining lengths — is in the EWI base track installation guide.
Which Base Track Width?
Every track in the family is 2.5 m long; only the width changes. Measure the insulation at the base, then pick the matching width.
| Track | Width | Length | Maker's carton |
|---|---|---|---|
| 23 mm base track | 23 mm | 2.5 m | — |
| 33 mm base track (this track) | 33 mm | 2.5 m | 20 |
| 53 mm base track | 53 mm | 2.5 m | 20 |
| 83 mm base track | 83 mm | 2.5 m | 20 |
| 93 mm base track | 93 mm | 2.5 m | 20 |
| 103 mm base track | 103 mm | 2.5 m | 20 |
| 163 mm base track | 163 mm | 2.5 m | 10 |
Is 33 mm the Right Width?
- Yes — for thinner boards at the base, where 33 mm matches the insulation.
- Thinner still — the 23 mm track is the narrowest in stock.
- Thicker — step up the table to the width that matches your board.
Ordering, Delivery and Collection
- How many: divide the length of the wall's base by 2.5 m and round up. A 12 m run takes 12 ÷ 2.5 = 4.8, so five lengths; add one for corner cuts.
- Dispatch: orders go out the same day when the track is in stock.
- Delivery: after the order, the team contacts you with the most cost-effective way to send it; small parcels up to 25 kg can go next day, pallets next day or in two business days on the economy option. Every delivery is kerbside.
You can also collect the base track 33mm 2.5m from the counter at Unit 9A, Central Trading Estate, Southampton SO14 5JP — Monday to Friday 7am to 5pm, Saturday 7am to 12pm. Changed your mind? Tracks bought from Renders World can come back in their original condition within 14 days — see cancellations and returns.
FAQ — 33 mm Base Track
What is a base track for?
It is the first part fixed to the wall in an insulation job. The boards stand on it, it protects their bottom edge, and its drip keeps rainwater off the wall below.
Which insulation is the 33 mm track for?
The maker sizes each width to a thickness of polystyrene or mineral wool. Measure the board you will fit at the base and choose the width that matches it; for a thicker board, step up to the 53 mm track or wider.
How many lengths come in a carton?
PROFIGIPS packs the 33 mm width 20 lengths to a carton — 50 m of track. Renders World also sells the base track 33mm 2.5m as single lengths.
Do I need a clip-on profile as well?
It is the usual partner: the clip-on profile fits onto the front of the track and ties the bottom of the render system into the base coat with its mesh wing. Renders World suggests one for each length of track.
Can I collect it in Southampton?
Yes. Come to the counter at Unit 9A, Central Trading Estate, during opening hours and take it with you.
Technical Documentation for the 33 mm Base Track
- PROFIGIPS plinth profile (starter trim) — product page — widths, lengths, cartons and pallets for the AC range.