
Road base.
Crushed, well-graded rock used as the compacted base and sub-base under roads, pads, and slabs.
- 19mm minus
- Primary gradation
- MoTT SS202
- BC reference specification
- Pit or delivered
- Pickup or to your site
- Crush to your gradation
- To your supplied specification
Crushed aggregate
Road base is crushed, well-graded rock with fines, engineered to compact into a dense, load-bearing layer under roads, lanes, pads, and slabs. In BC the governing reference is MoTT SS202. Tell us the gradation your engineer specified and we crush to it.

Sizes and the BC reference specification.
The specifications your job references. We crush to your supplied gradation, whatever the reference.
- Common name
- Road base / crushed gravel
- Nominal size
- 19mm minus (3/4")
- BC reference specification
- MoTT SS202 well-graded base (WGB)
- Common name
- Road base, produced on request
- Nominal size
- 25mm minus (1")
- BC reference specification
- MoTT SS202 well-graded base, Table 202-C
- Common name
- Sub-base gravel
- Nominal size
- 75mm minus (3")
- BC reference specification
- MoTT SS202 select granular sub-base (SGSB)
| Common name | Nominal size | BC reference specification |
|---|---|---|
| Road base / crushed gravel | 19mm minus (3/4") | MoTT SS202 well-graded base (WGB) |
| Road base, produced on request | 25mm minus (1") | MoTT SS202 well-graded base, Table 202-C |
| Sub-base gravel | 75mm minus (3") | MoTT SS202 select granular sub-base (SGSB) |
Working to a printed specification for road base? We crush to your spec, including MoTT SS202 base course and CSA A23.1 concrete-aggregate gradations.
Common uses.
- Road and lane base
- Building pads
- Compacted sub-base
Three ways to get it.
- Pit pickup
- Bring your truck to the Summerland pit and our crew loads it.
- Delivery
- Across the South Okanagan, at an additional charge quoted per load.
- On-site crush
- We bring the plant and crush to your spec on site.
Send the gradation, the volume, and the site. We price the job.
Common questions
Road base, answered.
Not sure which size your job needs? Send the spec and we point you to the right product.
What gradation is your road base?
We crush to the gradation your job specifies, including MoTT SS202 well-graded base (WGB) and select granular sub-base (SGSB). Send your spec sheet and we produce to it.
Is your road base 19mm minus or 25mm minus?
We stock 19mm minus and 75mm minus sub-base. We do not stock 25mm minus, but we can produce it on request. BC producers sell by metric maximum size with fines: 19mm minus is three-quarter crush, 25mm minus is one-inch crush.
Do you crush road base to MoTT SS202?
Yes. MoTT SS202 is the governing BC road-base reference. Send your SS202 gradation and we crush to it.
Can I pick up at the pit, or do you deliver?
Both. Bring your truck to the Summerland pit and our crew loads it, or we arrange delivery across the South Okanagan for an additional charge quoted per load. We do not run our own trucks. For a spec crush we bring the plant to your site.
Get a number on your job
Tell us the spec, the volume, and the site.
Crushing on your site, pit pickup, or delivery. Send the details and we will price it.
