Best method to supply 3 fixtures (cold line) using PEX

[CeeTee]

The never ending bathroom remodel continues and I am trying to determine the best PEX fitting(s) usage/combination to supply the 3 fixtures (toilet, sink and shower). The hot line is more obvious but for the cold, 3 outlets will be needed. There is one 1/2" cold copper supply line coming up to the 3rd floor, and I will be transitioning this to 1/2" PEX to connect to the fixtures. My concern is that I will end up killing the water pressure by clustering multiple barb connections joined with small lengths of PEX pipe (tees etc). I have seen small 3 outlet manifolds but all appear to have 3/4" inlets.

Is there a best method or configuration when there is only one cold supply line for feeding 3 fixtures with PEX?

Many thanks!

 

[Terry]

Normally a bathroom would have a 1/2" hot supplying the lav and shower and a 3/4" cold for the lav, shower and toilet.
PEX is smaller than copper, so if you can at least solder on a tee for the toilet before breaking it down to PEX you will be better off volume wise.
If someone flushes while you are in the shower, the more volume the better.

 

[Sponsor]

 

[Reach4]

If you run only 1/2 inch cold, tee to the bathtub, and then tee to the lav and toilet.

 

[CeeTee]

Normally a bathroom would have a 1/2" hot supplying the lav and shower and a 3/4" cold for the lav, shower and toilet.
PEX is smaller than copper, so if you can at least solder on a tee for the toilet before breaking it down to PEX you will be better off volume wise.
If someone flushes while you are in the shower, the more volume the better.

Thanks Terry and Reach - the lav and toilet are on the same wall and right at the supply lines coming up from below. the shower is on the opposite wall from the supply lines. I probably should have mentioned this originally - would this alter things?

Thanks!