The company, which operates from more than 20 locations in England, will be along the M8 corridor between Edinburgh and Glasgow, with the first shop opening at Abbotsinch Retail Park in Paisley before Easter.
It is investing around £4 million into its Scottish expansion plan. Growth in the south-east of England is also being planned, with a Slough store in May.
Jason Tyldesley, CSL managing director, said: "The strength of our performance during the past 12 months has given us the confidence to continue our investment and expansion. Our big focus is on expansion into Scotland, south-east England and building our ecommerce business."