Cross over

I am using Peco 70 gauge HO track for my 2 track main line and have need to build a one line 90degree cross over to access another area.Is there any way of getting this done with standard cross over and if not how can I custome make it[?]

Doesn’t Peco make a 90 degree crossover? If they don’t, Atlas does.

Are you talking about a crossing or a crossover?
A crossing is where one track crosses the other.
A crossover, sometimes found on double track, is where a turnout on each track connects together so a train can CROSS OVER from one line to another.

Here is a track arrangement with TWO crossovers, one right and one left, made with four individual standard switches to go into a curve.

Some brands of track have crossovers made as one piece with two turnouts facing each other, and sometimes those are called “standard crossovers”.
Are you trying to take one track across a double-track mainline? Standing CROSSING sections are made in 90 degree, 60 degree, 30 degree, 15 degree angles, etc by various track manufacturers. Putting two standard 90 degree crossings together to cross two tracks would make the two tracks too far apart to be a double-track mainline. But you could cut down the straight part of ONE leg on EACH crossing to make whatever distance separation is needed for typical double-track. I believe this is shown in one of the Atlas track books.

Hope this doesn’t cross you up!

Guys, a good way to avoid confusion is to call that section of track where two lines cross a “DIAMOND”. Leighant is correct that a pair of “turnouts” arranged as his diagram shows form a “crossover”.

So, my understanding is that you seek a code 70, 90 degree diamond. Actually if you need to cross 2 mainlines, then you will need to just get 2 seperate pieces and cut them so that they fit .