Hi guys i'm hoping to make a kingsize bed soon. Now my skills are novice but my dad makes dam strong good beds for family members kids. what i want to know cos i have to do the research is will 10cm square leg post be enough? Im going to have 7 or 9 legs. also using 19- 20cm x 2cm for base and slats with 3cm x 7cm for the slat rails at side. head board will be same. is that wood strong enough? i was thinking used scaffold boards which are £12 for 13ft. for fixing together was thinking of coach bolts?