For quite a few months now I have been gathering information about my first DIY project. I figured that in my situation (small room) a sealed 3c/f Shiva will be the best compromise. I bought all the components I needed (driver, 250w plate amp, polyfill, grill cloth, Behringer eq, T-nuts). The last thing I had to do is build the box. I don't know why, but somehow I got the (false) impression that building a sealed box would be piece of cake easy. Since I have no special tools in my home I thought I let a carpenter do the cutting, then I'll do the gluing. When I showed the carpenter my drawings for the box, he really had no idea about the trouble I was getting him into, the only thing he was worried about was the MDF size, I asked him for 1.25", he said that it is insanely heavy. Since he hasn't had any clue that about 40% of the pieces I wanted him to cut were to be made braces, he said that since it's such an easy job he will glue it for me for another $25. I have been at his workshop for most of the time he worked on my box, and I want to tell you, it was pretty hard. This carpenter is very experienced yet I kept here him yelling and cursing the wood for not acting as he wanted. The 1.25" MDF is very heavy and he told me that he almost broke his back twice trying to lift some of the boards together. Anyway, it was very hard for him, he used tons of equipment to balance the box correctly, and at the end, after gluing, he had a room full of dozens of clamps at all sizes at his service. I am so glad I didn't do it on my own, even if I could manage to create a box-like enclosure, it would have never been so perfect as the box he made. The funny thing is that since he didn't knew what he was geting himself into at the beginning, we agreed that I will pay him $100 for the whole thing. Today (during gluing) he told me that in order for this to be worthwhile for him he should have charged me at least $200, but since we have an agreement and it's partly his fault for not studying the project better he said that he will keep the price at $100, he also implied (very faintly though) that I cheated him to think it was just a regular speaker. I told him the truth that it's the first time in my life that I see something like this being built and I'm sorry but it was only ignorance. Do you think I should pay him more ? if so, how much should I add ?. btw, he had a very interesting way to connect the boards together. He made thin long insertion holes at both sides of the joint, then he sticked a biscuit-like wood into one of the holes, and connected the other board like lego to it.