Recommend a good builders merchant in West or North CM? Delivery would be good too.

Delivered to where? In general, what do you need to buy? Do you speak Thai?

tiles, cement, doors etc, within ring road not more than 4/5km, no thai

There are several ring roads. No Thai limits the choices. Try Noppadon Panich, the big Home Mart shop on the Super Hwy between the Doi Saket road and the Mae Rim road, the inside/south side of the Super or the Home Mart store across the street. Noppadon has a larger selection of tiles.

solid thanks, recommend any especially good thai speaking and i can go with a friend

Noppadon would be my recommendation too, and they deliver. For tiles, go to Home Sukhaphan on the Middle Ring between the Sankamphaeng Rd and Doi Saket Road, on the left when going towards the Doi Saket Rd underpass. It's huge. For doors you can also check out Global House on the Middle Ring in between the Old Lamphun Road tunnel and the river.

Thai speaking.

Go thru Mae Rim on the main road to Chiang Dow, past the turn off to Mae Saa Valley the road swings right, left then right again and you will see a 7-11 on the left. It is just before the 7 (or just after it), not sure as the 7 is fairly new. Good prices and delivery, talk to the lady or man owners at the rear desk if you have a list and will be ordering a lot of stuff. They will price it for you but probably refer you to other staff to choose tiles and doors...

Thai speaking.

Go thru Mae Rim on the main road to Chiang Dow, past the turn off to Mae Saa Valley the road swings right, left then right again and you will see a 7-11 on the left. It is just before the 7 (or just after it), not sure as the 7 is fairly new. Good prices and delivery, talk to the lady or man owners at the rear desk if you have a list and will be ordering a lot of stuff. They will price it for you but probably refer you to other staff to choose tiles and doors...

This sounds like Home Mart in Mae Rim, just before the busy market going North. Good place and they have a good selection of steel and good delivery.

super, thankyou very much