A3 aperture mount boards

[EMA747]

Has anyone bought and can recommend anywhere that does mounting board with A3 aperture? Something like this http://www.frame-company.co.uk/white-mount-a2-234x165-for-a3-165x1175-image_1.html

I need to mount (without glass) about 15, maybe 20 A3 size prints.

I'm sure most of them are ok quality but I'd be happier if I could hear from someone who can vouch for a particular supplier before I order some.

 

[Bristolian]

I generally purchase all my mounts from PictureLizard - www.picturelizard.co.uk - and have always been satisfied with their quality and service.

 

[EMA747]

Thanks I will take a look at those.